Gallery: How Apple designed its Watch to free us from our iPhones

A new typeface, San Francisco, was custom-drawn to be quickly readable on the small display

Siri's sound waves were reworked to make sure you can see it is listening

The team shot tiny jellyfish using the highest-definition slo-mo cameras in the world. Dye says, "No reasonable person can see this level of detail. And yet to us, it's really important that we get them right"